CN210815511U

CN210815511U - Ball mill

Info

Publication number: CN210815511U
Application number: CN201921772907.4U
Authority: CN
Inventors: 俞立勇
Original assignee: Tangshan Xintian Industry Co ltd
Current assignee: Tangshan Xintian Industry Co ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-06-23
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a ball mill, including frame, first cylinder, second cylinder, first cylinder and second cylinder rotate to be installed in the frame, the first discharge gate of first cylinder with connect through the sieving mechanism between the second pan feeding mouth of second cylinder, the sieving mechanism includes dust cover, netted cylinder and material collection device, netted cylinder both ends are connected with first discharge gate and second pan feeding mouth through the flange bearing respectively. The ball mill of the utility model is respectively provided with the first roller for crushing the material and the second roller for further grinding the material, so that the division of labor is more clear and the efficiency is higher; through setting up material sieving mechanism between two cylinders, sieve out the material that has met the requirements in the first cylinder, no longer get into the second cylinder and grind, reduced unnecessary repeated workmanship, further promoted work efficiency.

Description

Ball mill

Technical Field

The utility model relates to a mining machinery especially relates to a ball mill.

Background

The ball mill is an indispensable engineering machine in mining industry and building industry, and is usually used for finely crushing crushed materials.

The ball mill in the prior art mainly comprises a cylindrical barrel, an end cover, a bearing, a transmission large gear ring and other parts, wherein a steel ball or a steel bar with the diameter of 25-150mm, called a grinding medium, is filled in the barrel, and the filling amount of the grinding medium is 25% -50% of the volume of the whole barrel. The two ends of the cylinder are provided with end covers which are connected with flanges at the end parts of the cylinder by screws, the middle part of each end cover is provided with a hole called as a hollow journal, the hollow journal is supported on a bearing, and the cylinder can rotate. A large gear ring is fixed on the cylinder body. In the driving system, the motor drives the large gear ring and the cylinder body through the coupler, the speed reducer and the pinion to slowly rotate. When the barrel rotates, the grinding medium rises to a certain height along with the barrel and then falls in a parabola shape or falls in a pouring manner, the hollow shaft neck is arranged on the end cover, the material is fed into the barrel from the hollow shaft neck at the left side and gradually diffuses and moves towards the right side, when the material moves from the left side to the right side, the rotating barrel brings the steel balls to a certain height and falls down to crush the material, a part of the steel balls have a grinding effect on the material in a pouring state in the barrel, and the whole moving process is also a crushing process of the material.

In order to effectively utilize grinding action, when a general twenty-mesh grinder with larger material granularity is ground, the grinder body cylinder is divided into two sections by a partition plate to form a double bin, the material is crushed by steel balls when entering the first bin, the steel section grinds the material when entering the second bin, and the ground qualified material is discharged from the discharge end hollow shaft. However, this kind of operating means makes the material that has passed qualified in first storehouse still need to get into the second storehouse and grind, has influenced production efficiency greatly, the utility model provides a novel ball mill to this shortcoming.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a ball mill solves foretell problem, the utility model discloses a following technical scheme:

the utility model relates to a ball mill, including frame, first cylinder, second cylinder, first cylinder and second cylinder rotatable mount are in the frame, the outside of first cylinder and second cylinder is provided with the external gear, the external gear is connected with power device, the front end of first cylinder is provided with first pan feeding mouth, and the rear end of first cylinder is provided with first discharge gate, the front end of second cylinder is provided with second pan feeding mouth, and the rear end of second cylinder is provided with second discharge gate; the first discharging hole is connected with the second feeding hole through a screening device.

Furthermore, the screening device comprises a dust cover, a meshed roller and a material collecting device, two ends of the meshed roller are connected with the first discharging port and the second feeding port through flange bearings respectively, a transmission gear is arranged on the left side of the meshed roller and connected with a power motor, the dust cover is wrapped and installed around the meshed roller, two ends of the dust cover are connected with the meshed roller through bearings respectively, and the material collecting device is arranged on the lower portion of the dust cover.

Furthermore, a sealing ring is arranged on the inner side of the joint of the dust cover and the reticular roller.

Further, an exhaust fan is arranged on the inner side of the material collecting device to form a negative pressure environment.

Furthermore, the reticular roller is made of high-strength steel, and discharge holes are uniformly formed in the surface of the reticular roller.

Furthermore, a steel ball for crushing the materials is arranged in the first roller, and a steel section for grinding the materials is arranged in the second roller.

Furthermore, an openable cover plate is arranged on the side face of the dust cover, and sealing strips are arranged on the periphery of the cover plate.

Compared with the prior art, the utility model discloses a beneficial technological effect:

the ball mill of the utility model is respectively provided with the first roller for crushing the material and the second roller for further grinding the material, so that the division of labor is more clear and the efficiency is higher; through setting up material sieving mechanism between two cylinders, sieve out the material that has met the requirements in the first cylinder, no longer get into the second cylinder and grind, reduced unnecessary repetitive operation, further promoted work efficiency.

Drawings

The invention will be further explained with reference to the following description of the drawings:

FIG. 1 is a schematic view of the ball mill of the present invention;

fig. 2 is the structure schematic diagram of the ball mill screening device of the utility model.

Description of reference numerals: 1. a frame; 2. a first drum; 3. a second drum; 4. a first feeding port; 5. a first discharge port; 6. a second feeding port; 7. a second discharge port; 8. a screening device; 9. a dust cover; 10 a mesh drum; 11. a material collection device; 12. a flange bearing; 13. a transmission gear; 14. a power motor; 15. a power plant; 16. an outer gear; 17. and a bearing.

Detailed Description

As shown in fig. 1 to 2, a ball mill comprises a frame 1, a first drum 2 and a second drum 3, wherein the first drum 2 and the second drum 3 are rotatably mounted on the frame 1, external gears 16 are arranged outside the first drum 2 and the second drum 3, a power device 15 comprises a motor and a driving gear at a working end of the motor, the driving gear is meshed with the external gears 16, a first feeding port 4 is arranged at the front end of the first drum 2, a first discharging port 5 is arranged at the rear end of the first drum 2, a second feeding port 6 is arranged at the front end of the second drum 3, and a second discharging port 7 is arranged at the rear end of the second drum 3; the first discharge hole 6 of the first roller 2 is connected with the second feeding hole 6 of the second roller 3 through a screening device 8, the screening device 8 comprises a dust cover 9, a mesh-shaped roller 10 and a material collecting device 11, two ends of the reticular rotary drum 10 are respectively connected with the first discharge hole 5 and the second feeding hole 6 through flange bearings 12, the left side of the reticular rotary drum 10 is provided with a transmission gear 13 which is meshed with a gear at the working end of a power motor 14, the power motor 14 is arranged on the frame 1, the dust cover 9 is wrapped and arranged around the mesh-shaped roller 10, two ends of the dust cover 9 are respectively provided with a bearing 17 to be connected with the reticular roller 10 which can rotate between the first material outlet 5 and the second material inlet 6, the reticular roller 10 is made of high-strength steel, and discharge holes are uniformly formed in the surface of the reticular roller 10. And a material collecting device 11 is arranged at the lower part of the dust cover 9. And a sealing ring is arranged on the inner side of the joint of the dustproof cover 9 and the reticular roller 10. Make dust cover 9 and 11 insides of material collection device be airtight environment, 11 inboards of material collection device are provided with the air exhauster, form the negative pressure, reduce the production of floating dust, avoid influencing the bearing life-span. The first roller 2 is internally provided with a steel ball for crushing materials, and the second roller 3 is internally provided with a steel section for grinding materials. An openable cover plate is arranged on the side face of the dust cover 9, the working condition of the reticular roller 10 can be directly observed after the openable cover plate is opened, the maintenance is convenient, and sealing strips are arranged on the periphery of the cover plate. Be provided with the several air nozzle between the top of dust cover 9 and netted cylinder 10, air nozzle and external fan intercommunication, the fan produces high-speed air current and blows to netted cylinder 10 on, the discharge opening on the netted cylinder 10 of clearance prevents to block up.

The action process of the utility model is as follows:

the material gets into first cylinder 2 from first pan feeding mouth 4 in, is provided with the steel ball that smashes the material in the first cylinder 2, along with first cylinder 2 gyration, the material is followed the left side of first cylinder 2 and is moved to the right side gradually, spills over from first discharge gate 5 and gets into in the sieving mechanism 8. Along with the rotation of the reticular roller 10, the materials meeting the requirements enter the material collecting device 11 from the discharge hole on the surface of the reticular roller 10, an exhaust fan is arranged in the material collecting device 11, and when the exhaust fan works, the interior of the material collecting device 11 is in a negative pressure state, so that the generation of floating dust is reduced. The material that does not meet the requirements moves right through continuing, gets into second cylinder 3 through second pan feeding mouth 6, sets up the steel section in the second cylinder 3 and further grinds the material.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A ball mill characterized in that: the automatic feeding device comprises a rack (1), a first roller (2) and a second roller (3), wherein the first roller (2) and the second roller (3) are rotatably arranged on the rack (1), external gears (16) are arranged on the outer sides of the first roller (2) and the second roller (3), the external gears (16) are connected with a power device (15), a first feeding hole (4) is formed in the front end of the first roller (2), a first discharging hole (5) is formed in the rear end of the first roller (2), a second feeding hole (6) is formed in the front end of the second roller (3), and a second discharging hole (7) is formed in the rear end of the second roller (3); the first discharging hole (5) is connected with the second feeding hole (6) through a screening device (8).

2. The ball mill according to claim 1, characterized in that: screening device (8) are including dust cover (9), netted cylinder (10) and material collection device (11), the both ends of netted cylinder (10) are connected with first discharge gate (5) and second pan feeding mouth (6) through flange bearing (12) respectively, netted cylinder (10) left side is provided with drive gear (13), drive gear (13) are connected with motor power (14), dust cover (9) parcel is installed around netted cylinder (10), the both ends of dust cover (9) are connected with netted cylinder (10) through bearing (17) respectively, the lower part of dust cover (9) is provided with material collection device (11).

3. The ball mill according to claim 2, characterized in that: and a sealing ring is arranged on the inner side of the joint of the dustproof cover (9) and the reticular roller (10).

4. The ball mill according to claim 2, characterized in that: an exhaust fan is arranged on the inner side of the material collecting device (11) to form a negative pressure environment.

5. The ball mill according to claim 2, characterized in that: the net-shaped roller (10) is made of high-strength steel, and discharge holes are uniformly formed in the surface of the net-shaped roller (10).

6. The ball mill according to claim 1, characterized in that: the steel ball that is used for smashing the material is arranged in the first roller (2), and the steel section that is used for grinding the material is arranged in the second roller (3).

7. The ball mill according to claim 2, characterized in that: an openable cover plate is arranged on the side face of the dust cover (9), and sealing strips are arranged on the periphery of the cover plate.